TY - JOUR ID - 4044 TI - Simultaneous Lot Sizing and Scheduling in a Flexible Flow Line JO - Journal of Industrial and Systems Engineering JA - JISE LA - en SN - 1735-8272 AU - Mahdieh, Masoumeh AU - Bijari, Mehdi AU - Clark, Alistair AD - Department of Mathematics and Statistics, Bristol Institute of Technology, University of the West of England, Bristol, England AD - Department of Industrial & Systems Engineering, Isfahan University of Technology, Isfahan, Iran Y1 - 2011 PY - 2011 VL - 5 IS - 2 SP - 107 EP - 119 KW - Lot sizing KW - scheduling KW - Flexible Flow Line KW - Mathematical Modelling DO - N2 - This paper breaks new ground by modelling lot sizing and scheduling in a flexible flow line (FFL) simultaneously instead of separately. This problem, called the ‘General Lot sizing and Scheduling Problem in a Flexible Flow Line’ (GLSP-FFL), optimizes the lot sizing and scheduling of multiple products at multiple stages, each stage having multiple machines in parallel. The objective is to satisfy varying demand over a finite planning horizon with minimal inventory, backorder and production setup costs. The problem is complex as any product can be processed on any machine but with different process rates and sequence-dependent setup times & costs. The efficiency of two alternative models is assessed and evaluated using numerical tests. UR - https://www.jise.ir/article_4044.html L1 - https://www.jise.ir/article_4044_b674194cc350a8d18a5ba34919e423d5.pdf ER -